baber/WOPTO huggingface dataset:
Patent GB-411639-A (GB)
Title: Improvements in and relating to carburetters
IPC: F02M7/00
Filed: 1933-04-03
Abstract: 411,639. Spray carburetters. DAIMLER-BENZ AKT.-GES., Unterturkheim, Stuttgart, Germany. April 3, 1933, No. 10027. Convention date, April 2, 1932. [Class 7 (iii).] A spray carburetter having between the float chamber and the fuel nozzle an auxiliary well from which additional fuel is temporarily supplied when the vacuum acting on the nozzle increases above a certain degree, is provided with a byepass between the float chamber and the nozzle and with controlling means, communication through the byepass being interrupted during normal running but the control means permitting an increased flow of fuel to the nozzle to be maintained for any desired period. A restricted orifice 14 limits the flow of fuel from a float chamber 10 to the fuel nozzle 12 and an auxiliary reservoir 15 and causes the latter to empty as the engine changes from idle to normal running, air eventually being drawn in through an orifice 16 at the top of the reservoir 15 to form an emulsion at the nozzle 12. The reservoir may have an enlarged upper portion to delay the commencement of the fuel restriction and then to bring it into effect quickly. During acceleration or hill climbing, the last part of the throttle movement, as it is fully opened, is arranged to depress a rod 20 and open a ball valve 19 in a bypass 17, 18 around the constricted orifice 14 to permit a free flow of fuel to the nozzle 12 and reservoir 15. The valve 19 may be supported by a weak spring permitting fuel to flow from the float chamber to the nozzle when suction thereat is weak as during idling.
Patent GB-883815-A (GB)
Title: Improvements in liquid fuel fired heaters
Inventor: COPLEY DONALD WILLIAM
IPC: F23N5/20
Filed: 1957-03-27
Abstract: 883,815. Controlling burners. SMITH & SONS (ENGLAND) Ltd., S. March 27, 1958 [March 27, 1957], No. 10049/57. Class 75(1) A liquid fuel burner is supplied with fuel from a small capacity reservoir 6 fed from a tank 9, the fuel flow from the tank 9 to the reservoir 6 being controlled by an electromagnetic valve 12 and the fuel flow between the reservoir 6 and the burner being controlled by an electromagnetic valve 8. At starting a main switch 17 is closed to energize a hot wire igniter 3 and a relay 20 through the cold contact of a bimetal strip 4 responsive to the burner flame. The relay 20 closes a contact to complete a holding circuit and to open the electromagnetic valve 8 between the reservoir 6 and the burner. If the burner ignites the bimetal strip 4 closes a hot contact to open the other electromagnetic valve 12. The level of fuel in the reservoir 6 is maintained by a float valve 14. The burner is started and stopped by a bimetal strip 5 responsive to the temperature of water in a boiler 2 heated by the burner.
Patent GB-1002688-A (GB)
Title: Yellow glass bead compositions
IPC: C03C3/066
Filed: 1964-03-10
Abstract: Yellow glass beads comprise, in per cent by weight, TiO2 and/or ZrO2, 10-50; BaO, 10-56; SiO2, 0.2-30; B2O3, 0.5-14; cerium oxide, 0.1-1; at least twice as much by weight of TiO2 as ZrO2 being present; the balance, if any, consisting of other compatible constituents, e.g. CdS, up to 0.05; CaO, up to 40; Na2O, up to 14; Al2O3, up to 6 ; ZnO, up to 20.  Lead oxide may be used where the beads are protected from sulphide fumes.  The refractive index is 1.6-2.  A number of examples are given.
Patent GB-250969-A (GB)
Title: Improvements in receivers of high frequency electrical energy
IPC: H04B1/16
Filed: 1926-04-17
Abstract: 250,969. White, S. Y. April 18, 1925, [Convention date]. Thermionic amplifiers and detectors; local disturbances, limiting.-The in-put from the aerial H to a dual-amplifying valve VT2 contains no circuit tuned to high-frequencies. The high impedance of the secondary S1 of a low-frequency transformer T1 causes the high-frequency potentials received by the aerial to affect the grid of the valve VT2, the plate of which is coupled to a detecting-valve VT1, through inductances L3, L1. A condenser C4 is placed in the aerial circuit to lessen interference from power mains and the like. A high-frequency choke may be shunted across the condenser and the secondary of the transformer. According to modification, the dual-amplifying valve is choke-capacity coupled to a high-frequency valve coupled to a. crystal or like detector and a second low-frequency amplifying valve is added; two dual-amplifying valves coupled by low-frequency . and high-frequency transformers are used.
Patent GB-989896-A (GB)
Title: Multi-purpose kitchen appliance
IPC: B26D3/28
Filed: 1962-03-16
Abstract: 989,896. Fruit &c. peelers; lemon squeezers; cheese cutters. H. HERDER, [trading as DIOGENES-WERKE & SOHN]. March 16, 1962 [March 16, 1961], No. 10212/62. Heading A4C. A multi-purpose kitchen appliance comprises a first component 1 having a knife edge 7 overhanging a transverse slot 6 at one end for cheese &c. cutting and a second component 2 which may be hinged, as at 4, in releasable manner to the first component 1 whereby lemons may be squeezed between serrated surfaces 15, 18 provided respectively on the components 1, 2. The components 1, 2 may be used separately, provision being made to releasably fit a peeling knife 13 to the first component 1 and the second component 2 being provided with arcuate cutting means 20 for peeling oranges.
Patent GB-768314-A (GB)
Title: Improvements in or relating to tractor hitch links
IPC: A01B59/041
Filed: 1955-04-07
Abstract: 768,314. Tractor-trailer couplings. FORD MOTOR CO., Ltd. April 7, 1955 [April 12, 1954], No. 10305/55. Class 103(5). A tractor-trailer linkage comprises conventional power lift arms connected to the upper ends of an A-frame 18 of a plough, Fig. 1, and draft link structures 21 which may be adjusted so that the trailer may be steered either about the theoretical point of convergence of the link structures 21, e.g. on the front axle of the tractor, or about a point longitudinally displaced from that point of convergence, e.g. on the rear axle. Each link 21 comprises elements 32, 44 pivoted at their rear ends 39, 48, Figs. 4, 5, 7, to a vertical clevis arm 40 supporting a spherical bearing 42 for the trailer cross shaft 20, the elements 32, 44 being pivoted at their forward ends to a bracket 22 rotatable about a bolt 24 screwed into the axle casing 11. When the elements of the links 21 are attached to the brackets 22 as shown in Fig. 4, the difference between the lengths of the elements will cause their rear ends and the bearing 42 to follow arcs 32a, 44a and 42a respectively when relative movement between tractor and trailer takes place. These arcs substantially coincide however and so give an effective steering point on the front axle of the tractor. When the elements are shifted laterally, Fig. 5, relative movement between tractor and trailer causes the rear ends of the elements to follow arcs 32a, 44b, which being spaced as shown causes the arm 40 to tilt, Fig. 7, so that the arc 42b followed by the bearing 42 is now centred on the tractor back axle thus giving the trailer a rearward steering point.
Patent GB-165260-A (GB)
Title: Improvements in or relating to pipes or tubes
IPC: F16L58/14
Filed: 1920-04-13
Abstract: 165,260. Thomas, C. April 13, 1920. Metal pipes a are given an anti-rust lining b of enamel throughout their length and on their abutting faces.
Patent GB-1104744-A (GB)
Title: Antistatic compositions based on quaternary ammonium salts
Inventor: CARTER PETER
IPC: D06M13/463
Filed: 1964-03-11
Abstract: n-Hexadecyl and n-octadecyl tri-n-butyl ammonium bromides are prepared by reacting tri-n-butylamine with n-hexadecyl bromide and n-octadecyl bromide respectively.  The above quaternary bromides may be converted to the corresponding hydroxides by treatment with silver oxide and the latter may be further converted to the corresponding quaternary chlorides by reaction with hydrochloric acid.ALSO:Synthetic plastics such as polythene or polystyrene are rendered antistatic by washing with aqueous solutions of a quaternary of the formula R(butyl)3NX, wherein R represents a C14-22 alkyl group and X represents an anion such as halide, sulphate or nitrate.  The aqueous treatment solution may be formed by dissolving in water a mixture of a minor amount of the above quaternary compound with a urea or sodium sulphate diluent.ALSO:Nylon, polyethylene terephthalate or other textile fabrics are rendered antistatic by washing with aqueous solutions of a quaternary compound of the formula R(butyl)3NX, wherein R represents a C14-22 alkyl group and X represents an anion such as halide, sulphate or nitrate.  The above treatment is preferably conducted as a final rinse after laundering and may be applied simultaneously with softening and whitening agent treatments.  The aqueous treatment solution may be formed by dissolving in water a mixture of a minor amount of the above quaternary compound with a urea or sodium sulphate diluent, or by dissolving in water a fused mixture of the above quaternary compound, a bis-(hydrogenated tallow alkyl) dimethyl ammonium chloride and an optical brightening agent (e.g. a pyrazoline-type brightening agent).
Patent GB-1341534-A (GB)
IPC: F16C33/04
Filed: 1972-03-06
Abstract: 1341534 Bearing member FORD MOTOR CO Ltd 6 March 1972 [7 April 1971] 10390/72 Heading C1M [Also in Division F2] A bearing member comprises a substrate having a surface layer consisting essentially of calcium fluoride, zinc oxide and stannic oxide. Preferably the surface layer consists of in weight per cent CuF 2  30-40; ZnO 43-53 and SnO 2  12-24. The substrate may be a nickel base alloy or a nickel-chromium stainless steel. An intermediate barrier layer is provided between the surface layer and the substrate and preferably consists of nickel oxide and calcium fluoride. The surface layer may be applied by plasma spraying using an argon carrier gas on to a surface of the substrate that has previously been grit-blasted.
Patent GB-1104451-A (GB)
Title: Process for the determination of the concentration of calcium ions in solution
IPC: G01N31/00
Filed: 1964-03-12
Abstract: Cations in solution are determined by loading with said cations an ion exchange strip comprising a b -cellulose film impregnated with an indicator dye containing arylsulphonic groups, washing the strip, elutriating the loaded ions and determining the concentration of the elutriated ions conventionally, e.g. by flame photometry or compleximetric titration.  Elutriation may be performed with, e.g. 0.05N HCl or 5% w/v NaCl.  The strips may be regenerated and reused, and can be employed in dirty situations: reference is made to determining calcium in blood serum.  The preferred Congo red strips may be prepared by impregnating the b -cellulose film at 80-85 DEG C in a bath of up to 0.5% w/v Congo red in water/propane-1:2-diol for at least 30 mins., washing, converting to the blue form with HCl and to the red form with aq. NaHCO3, washing, allowing to stand in CO2-free low conductivity water until leaking ceases, drying and cutting into strips.ALSO:Sheets of water-permeable b -cellulose, e.g. regenerated cellulose, may be dyed with Congo red by immersing at 80-85 DEG C in a bath of up to 0.5%w/v Congo red in water/propane -1:2-diol for at least 30 mins., washing the sheet, converting to blue form with HCl, converting to red (sodium) form with aq. NaHCO3, washing in high purity water and allowing to stand in CO2-free low conductivity water until the dye ceases to leak from the sheet and drying.  The resultant sheets are cut into strips for analytical use (see Division B1).  The final wash water may contain 8% propane-1:2-diol to prevent excessive rigidity.
Patent GB-1466696-A (GB)
Title: Injection moulding machine and method of operating the same
IPC: B29C45/76
Filed: 1974-03-08
Abstract: 1466696 Injection moulding screw control NETSTALL MASCHINEN AG 8 March 1974 [9 March 1973] 10582/74 Heading B5A An injection moulding machine having fluid pressure means 4, 5 for advancing an injection screw 3 in its cylinder 2, comprises means 13 for sensing the pressure in the fluid pressure means, means 11 for sensing the distance moved by the screw, means 8 for sensing the rotational speed of the screw, the three sensed signals being transmitted to a programmable arrangement which controls the rotational speed of the screw and the fluid pressure as a function of the screw travel during the plasticizing and metering operation. The said speed and fluid pressure may be reduced to such low levels at the end of the retraction stroke that risk of overrun of a screw retraction stroke-limit switch is reduced and greater consistency of shot volume is obtained.
Patent GB-970664-A (GB)
Title: Improvements in or relating to filling machines
Inventor: WEBB GEORGE ALBERT EDWARD
IPC: B65B65/02
Filed: 1962-03-20
Abstract: 970,664. Screw conveyers. AUTOPACK Ltd. March 15, 1963 [March 20, 1962], No. 10585/62. Heading B8A. Discharge screw 3 of hopper 1 is driven from motor 14 at two speeds. Firstly, at a greater speed via pulley 17, pulley 20, clutch 8, shaft 7 and shaft 4. Secondly and subsequently at a smaller speed via gear 15, gear 19, clutch 9, shaft 7 and shaft 4. The change-over from the faster speed to the slower speed is effected through timer 40. Timer 40, Fig. 2.-The drive from shaft 7 proceeds to shaft 41 via chain 28, shaft 39, gear 43 and clutch 46, so that cams 49 and 50 are driven. These operate the appropriate switches at the appropriate time to switch on screw 3 to its first speed and to change to its second speed. At the same time shaft 7 drives wheel 53 which tightens spring 54. Spring 54 serves to bring the timer back to the original datum time as defined by pin 56a which engages lug 55 on disc 53. The timer is therefore automatically reset for the next operation. The position of the datum line as defined by pin 56a may be varied by hand via shaft 59 and gear 57.
Patent GB-106548-A (GB)
IPC: A44B19/18
Abstract: 106,548. Fesler, J. B. June 27, 1916. Metal-strip fastenings.-A fastening - device f o r skirts, corsets, shoes, gloves, and other articles having edges which are drawn and fastened together, comprises two rows of spaced eyelets, one row on each of the edges to be fastened together, the eyelets of the two rows being brought into line, and a connecting-cord being passed through them by a threading-device having converging guides to engage the eyelets. The threading-device 6, in the form shown in cross-section in Fig. 3, is provided with curved guides 10, 11 to engage the interior of the eyelets 1, 2, and with grooves 7, 8 to receive the eyelet edges 9, Fig. 7. Fig. 10 shows in cross-section a threading-device provided with guide-plates 17 to engage the exterior of the eyelets, while Fig. 13 shows in plan a modification with external guide-plates 17 without the internal guides 10, 11. The eyelets may be attached to the beaded edges 14 in the manner shown in Fig. 7.
Patent GB-655607-A (GB)
Title: Improvements in electric discharge devices
IPC: H01J61/70
Filed: 1947-04-22
Abstract: 655,607. Electric discharge tubes. BRITISH THOMSON-HOUSTON CO., Ltd., CLARKE, M. G., and BLOOD, W. R. April 22, 1947, No. 10686. [Class 39 (i)] An electric discharge device passing unidirectional current with low voltage drop comprises an evacuated envelope 4 filled with a rare gas, such as argon or neon, or mixture of rare gases (and/or hydrogen) with an optional addition of mercury vapour, and contains a normally unheated filamentary cathode 1 having a work function not exceeding 3.5 volts, the spacing between the anode 2 and cathode 1 being of the order of 5 mms. and the pressure of the gas (and optionally mercury vapour), filling being of the order of 10-20 mms. The cathode 1 consists of a horizontal coil (or coiled coil), of refractory metal, such as tungsten, coated with a mixture of the oxides of barium and strontium and the anode 2 consists of a wire 2 of refractory metal, such as tungsten or molybdenum, having its end bent over towards the cathode. The breakdown voltage of the device is of the order of 100 to 300 volts, preferably 120 volts, and the impedance of the device after breakdown is of the order of 15 ohms.
Patent GB-749099-A (GB)
Title: Improvements in or relating to sheet separating machines
Inventor: TEBBS GEORGE WILLIAM
IPC: B65H7/04
Filed: 1953-04-14
Abstract: 749,099. Feeding sheets. BACKHOUSE, H. T. April 12, 1954 [April 14, 1953], No. 10745/54. Divided out of 749,067. Class 100(1). Sheet separators; faulty feed control devices.- In sheet-separating apparatus in which initially an edge portion of the top sheet is elevated from the pile, means including a feeler arranged to move downwardly through a position normally occupied by a raised portion of a sheet, is provided for detecting failure to elevate the sheet and then causing a warning device to be operated or the whole or part of the apparatus to be stopped. The invention is described as applied to the apparatus disclosed in Specification 741,226 wherein suction grippers, on a subframe which descends as the pile 20 is consumed, elevate and tauten the front edge 185 of the top sheet of the pile, and then present it to mechanical grippers 151 carried by upwardly moving chains. The sub-frame, which includes cross-bars 37, 38 and a driving shaft 66, carries two brackets 300 which support a trip shaft 302 drivingly connected to a vertical shaft at the side of the apparatus to cause, when the shaft 302 is rocked, the disconnection of a clutch in the drive to the apparatus. Two detecting devices are provided, each comprising a feeler finger 303 secured to a bracket 304 freely pivoted on the shaft 302 and urged clockwise by a spring 306, and a lever 308 also freely pivoted on the shaft 302 and having a roller 309 in contact with a cam 310 secured to the drive shaft 66. An abutment 312 on the lever 308 co-operates with an underface of the bracket 304 whereby the cam can lift the feeler 303, and a latch 314, pivoted on the lever, has a tail 315 engaging the underside of the feeler, and a hooked end adapted to co-operate with an arm 316 keyed to the shaft 302. In operation, the cam 310 raises the feeler 303 to position 303a,  the sheet edge 185 is lifted and tautened, and the feeler is lowered under the action of gravity and the spring 306 so that its end can rest on the sheet. If there is no sheet present, the feeler swings down to position 303b and rocks the latch 314 so that it engages the arm 316; on continued rotation of the cam 310, the lever 308 is moved upwardly to rock the shaft 302 which disengages the main driving clutch and stops the apparatus. No re-setting of the feeler device is necessary after the apparatus is restarted. The cam 310 is slidable along the shaft 66, and the lever 308, bracket 304 and arm 316 are slidable along the shaft 302; the bracket 300 has fork arms 320, 321 engaging the shafts 66, 302, respectively, to facilitate the sliding. The invention may be used in combination with the means for detecting the separation of two superposed sheets described in Specification 749,067. Specification 427,041 also is referred to.
Patent GB-975736-A (GB)
Title: Improvements in or relating to voltage stabilising apparatus
Inventor: FRIEDLANDER ERICH SIEGFRIED
IPC: G05F3/06
Filed: 1962-03-21
Abstract: 975,736. Controlled non-linear inductors. GENERAL ELECTRIC CO. Ltd. March 18, 1963 [March 21, 1962; May 2, 1962], Nos. 10746/62 and 16851/62. Heading H3B. [Also in Divisions G3 and H2] Voltage stabilizing apparatus for an A.C. supply system is connected in shunt with the system and comprises an A.C. saturable reactor of a type in which at least some of the low order harmonics are internally balanced, in combination with a series capacitor. As shown, a set of three-phase saturable reactors 101, 102, 103, connected for internal compensation of harmonics, is connected in series with capacitors 112, 113, 114, which compensate for voltage drop across the reactors, and the combination is connected in shunt with the supply system 105. Arc gaps 13, or circuit breakers, protect the series capacitors against switching circuits. A low-impedance by-pass, including capacitors 121, 122, 123, for second order harmonics may be provided, and the apparatus may include a further saturable reactor or a transductor connected across the series capacitor to improve the control action at low main reactor currents (Figs. 1, 3 and 4, not shown). A preferred construction of reactor, in which the windings are interconnected so that the third harmonic fluxes are suppressed and harmonic fluxes of the fifth and seventh orders are cancelled out, is described with reference to Fig. 2 (not shown).
Patent GB-591189-A (GB)
Title: Improvements in or relating to power units
IPC: F02K5/02
Filed: 1945-05-01
Abstract: 591,189. Centrifugal compressors; jet propulsion plant. FAIREY AVIATION CO., Ltd., and FORSYTH, A. G. May 1, 1945, No. 10984. Convention date, July 13, 1944. [Classes 110 (i) and 110 (iii)] [Also in Groups XXVII and XXXIII] A propulsion unit for aircraft and the like comprises a supercharged internal-combustion engine with clutch drives to a variable pitch propeller and a compressor feeding a main jet-propulsion device, and an auxiliary jetpropulsion device fed with air from the supercharger. The unit may comprise two engines arranged side by side and arranged to drive coaxial contra-rotating propellers C, D, Fig. 1, through independent clutches with output shafts gearing respectively with gear-wheels 10, 11 on the respective propeller shafts. The clutches are of the bevel gear and friction plate type. One engine A and one clutch 1 is shown. The pitch-changing mechanism is of the type described in Specification 580,745, [Group XXXIII]. Each engine is provided at the side and rear with a supercharger K, Fig. 3, driven through step-up gearing from the engine. Each supercharger is provided with an inlet 49 and a valve-controlled inlet 47, and outlets 50, 51 to auxiliary jet combustion chambers and its engine respectively. At the rear of each engine is arranged a compressor M, Fig. 1A, driven through a clutch O and pinions 27, 28, 29. Each compressor has inlets 34 and outlets Q to combustion chambers formed as venturis 37 and terminating in propulsion jets R. The auxiliary combustion chambers S and jets T are arranged forwardly and outside of the main combustion chambers and jets. The exhaust outlets 52 of the engines are disposed to direct the exhaust gases into the auxiliary combustion chambers.
Patent GB-142123-A (GB)
Title: Improvements in or relating to electromagnetic chucks or work holders
IPC: B23Q3/154
Filed: 1920-04-21
Abstract: 142,123. Zehnder & Sohne, J., (Assignees of Meier, W.). April 22, 1919, [Convention date]. Magnetic and electro-magnetic chucks and work-holders.-A magnetic work-holding device is energized by alternating current and is so arranged that the currents in the various exciting-coils of the magnets differ in phase, whereby a continuous holding force is obtained; single-phase, twophase, or three-phase currents may be employed. The device as illustrated is for use with three-phase currents and comprises one, two, or more similar sets of six laminated cores 1 - - 6, having thereon exciting-coils 8 and connected in pairs to a yoke 7. Each magnet rests on brass facings 12 carried by a cast-iron frame 11 mounted on a base-plate 10 and is secured to the base-plate by brass screws 9. Between the poles of the magnets are airgaps 13, and the apparatus is enclosed by a covering 14 of aluminium. The cores 1 - - 6 form three magnetic circuits each of which is excited by one of the phases of the supply circuit, the connexion plugs 15 being arranged to give either a star connexion or a delta connexion to the exciting coils. For single-phase circuits, the required difference of phase of the currents in the coils may be produced by insertion of an inductance in one of the circuits; for small holding- forces, the phases may coincide. A channel made of fibre may be provided between the poles to carry off water. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of fibre bars between the poles of the magnets. This subjectmatter does not appear in the Specification as accepted.